Home / 5,615.49-8,423.64-1,719.39

Finding the Fourth Proportional to 5,615.49, 8,423.64 and 1,719.39

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Solution

The fourth proportional to 5,615.49, 8,423.64 and 1,719.39 is: 2,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.49 : 8,423.64 = 1,719.39 : x
  2. Step 2: Convert to fraction form
    5,615.49/8,423.64 = 1,719.39/x
  3. Step 3: Cross multiply
    5,615.49x = 8,423.64 × 1,719.39
  4. Step 4: Simplify right side
    5,615.49x = 14,483,522.38
  5. Step 5: Solve for x
    x = 14,483,522.38/5,615.49
  6. Step 6: Final answer
    x = 2,579.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.